7.51 avg 20 episodes 7.7 → 7.9 44 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | Air: Part 1 | 7.7 | 1,375 |
| 2 | Air: Part 2 | 7.6 | 811 |
| 3 | Air: Part 3 | 7.2 | 1,173 |
| 4 | Darkness | 7.2 | 1,076 |
| 5 | Light | 7.8 | 1,087 |
| 6 | Water | 7.1 | 991 |
| 7 | Earth | 7.0 | 1,002 |
| 8 | Time | 8.0 | 1,147 |
| 9 | Life | 6.6 | 983 |
| 10 | Justice | 7.6 | 954 |
| 11 | Space | 7.9 | 952 |
| 12 | Divided | 7.6 | 912 |
| 13 | Faith | 7.4 | 888 |
| 14 | Human | 7.5 | 911 |
| 15 | Lost | 7.7 | 855 |
| 16 | Sabotage | 7.7 | 861 |
| 17 | Pain | 6.8 | 861 |
| 18 | Subversion | 8.0 | 872 |
| 19 | Incursion: Part 1 | 7.9 | 867 |
| 20 | Incursion: Part 2 | 7.9 | 881 |
7.83 avg 20 episodes 7.6 → 8.7 44 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | Intervention | 7.6 | 848 |
| 2 | Aftermath | 7.5 | 785 |
| 3 | Awakening | 8.0 | 786 |
| 4 | Pathogen | 7.3 | 767 |
| 5 | Cloverdale | 6.3 | 842 |
| 6 | Trial and Error | 7.4 | 715 |
| 7 | The Greater Good | 8.1 | 739 |
| 8 | Malice | 8.0 | 725 |
| 9 | Visitation | 7.3 | 698 |
| 10 | Resurgence | 8.0 | 706 |
| 11 | Deliverance | 7.8 | 737 |
| 12 | Twin Destinies | 8.4 | 859 |
| 13 | Alliances | 7.7 | 732 |
| 14 | Hope | 8.0 | 737 |
| 15 | Seizure | 8.0 | 749 |
| 16 | The Hunt | 7.3 | 689 |
| 17 | Common Descent | 8.2 | 788 |
| 18 | Epilogue | 8.5 | 881 |
| 19 | Blockade | 8.4 | 725 |
| 20 | Gauntlet | 8.7 | 1,021 |
